1sr, 2nd, 3rd & 4th dimensions

Imagine yourself a two-dimensional being!
Then you discover height (always there)
See how 3rd dimension replaces 2nd? Now try 4th

P.S.: if you were a 1-dimensional being, you’d look like this => •
LOL

With your discovery of the Third Dimension, you also have flowers and trees and skyscrapers and train wrecks and tsunamis and disease and war.

What does the 4th Dimension accord?